


'''simple docstring'''


import contextlib
import os
import sqlitea

import pytest

from datasets import Dataset, Features, Value
from datasets.io.sql import SqlDatasetReader, SqlDatasetWriter

from ..utils import assert_arrow_memory_doesnt_increase, assert_arrow_memory_increases, require_sqlalchemy







def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				assert isinstance(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	)
				assert dataset.num_rows == 4
				assert dataset.num_columns == 3
				assert dataset.column_names == ["col_1", "col_2", "col_3"]
				for feature, expected_dtype in expected_features.items():
								assert dataset.features[feature].dtype == expected_dtype







@require_sqlalchemy
@pytest.mark.parametrize("""keep_in_memory"""				, [False, True]	)
def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				_SCREAMING_SNAKE_CASE					:			Dict							= tmp_path / """cache"""
				_SCREAMING_SNAKE_CASE					:			List[str]							= {"""col_1""": """string""", """col_2""": """int64""", """col_3""": """float64"""}
				with assert_arrow_memory_increases() if keep_in_memory else assert_arrow_memory_doesnt_increase():
								_SCREAMING_SNAKE_CASE					:			Optional[Any]							= SqlDatasetReader(
								    """dataset"""				, """sqlite:///""" + sqlite_path				, cache_dir=SCREAMING_SNAKE_CASE__				, keep_in_memory=SCREAMING_SNAKE_CASE__	).read()
				_check_sql_dataset(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	)







@require_sqlalchemy
@pytest.mark.parametrize(
    """features"""				, [
        None,
        {"""col_1""": """string""", """col_2""": """int64""", """col_3""": """float64"""},
        {"""col_1""": """string""", """col_2""": """string""", """col_3""": """string"""},
        {"""col_1""": """int32""", """col_2""": """int32""", """col_3""": """int32"""},
        {"""col_1""": """float32""", """col_2""": """float32""", """col_3""": """float32"""},
    ]				, )
def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				_SCREAMING_SNAKE_CASE					:			Optional[int]							= tmp_path / """cache"""
				_SCREAMING_SNAKE_CASE					:			Tuple							= {"""col_1""": """string""", """col_2""": """int64""", """col_3""": """float64"""}
				_SCREAMING_SNAKE_CASE					:			Union[str, Any]							= features.copy() if features else default_expected_features
				_SCREAMING_SNAKE_CASE					:			Dict							= (
				    Features({feature: Value(SCREAMING_SNAKE_CASE__	) for feature, dtype in features.items()}	) if features is not None else None
				)
				_SCREAMING_SNAKE_CASE					:			str							= SqlDatasetReader("""dataset"""				, """sqlite:///""" + sqlite_path				, features=SCREAMING_SNAKE_CASE__				, cache_dir=SCREAMING_SNAKE_CASE__	).read()
				_check_sql_dataset(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	)







def      snake_case_  (    SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				with contextlib.closing(sqlitea.connect(SCREAMING_SNAKE_CASE__	)	) as con:
								_SCREAMING_SNAKE_CASE					:			int							= con.cursor()
								cur.execute("""SELECT * FROM dataset"""	)
								for row in cur:
												yield row







@require_sqlalchemy
def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				_SCREAMING_SNAKE_CASE					:			Optional[int]							= tmp_path / """cache"""
				_SCREAMING_SNAKE_CASE					:			int							= os.path.join(SCREAMING_SNAKE_CASE__				, """tmp.sql"""	)
				_SCREAMING_SNAKE_CASE					:			Union[str, Any]							= SqlDatasetReader("""dataset"""				, """sqlite:///""" + sqlite_path				, cache_dir=SCREAMING_SNAKE_CASE__	).read()
				SqlDatasetWriter(SCREAMING_SNAKE_CASE__				, """dataset"""				, """sqlite:///""" + output_sqlite_path				, num_proc=1	).write()

				_SCREAMING_SNAKE_CASE					:			Any							= iter_sql_file(SCREAMING_SNAKE_CASE__	)
				_SCREAMING_SNAKE_CASE					:			int							= iter_sql_file(SCREAMING_SNAKE_CASE__	)

				for rowa, rowa in zip(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):
								assert rowa == rowa







@require_sqlalchemy
def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				_SCREAMING_SNAKE_CASE					:			List[Any]							= tmp_path / """cache"""
				_SCREAMING_SNAKE_CASE					:			List[str]							= os.path.join(SCREAMING_SNAKE_CASE__				, """tmp.sql"""	)
				_SCREAMING_SNAKE_CASE					:			Any							= SqlDatasetReader("""dataset"""				, """sqlite:///""" + sqlite_path				, cache_dir=SCREAMING_SNAKE_CASE__	).read()
				SqlDatasetWriter(SCREAMING_SNAKE_CASE__				, """dataset"""				, """sqlite:///""" + output_sqlite_path				, num_proc=2	).write()

				_SCREAMING_SNAKE_CASE					:			Dict							= iter_sql_file(SCREAMING_SNAKE_CASE__	)
				_SCREAMING_SNAKE_CASE					:			Union[str, Any]							= iter_sql_file(SCREAMING_SNAKE_CASE__	)

				for rowa, rowa in zip(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):
								assert rowa == rowa







@require_sqlalchemy
def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				_SCREAMING_SNAKE_CASE					:			Union[str, Any]							= tmp_path / """cache"""
				_SCREAMING_SNAKE_CASE					:			int							= os.path.join(SCREAMING_SNAKE_CASE__				, """tmp.sql"""	)
				_SCREAMING_SNAKE_CASE					:			Optional[int]							= SqlDatasetReader("""dataset"""				, """sqlite:///""" + sqlite_path				, cache_dir=SCREAMING_SNAKE_CASE__	).read()
				with pytest.raises(SCREAMING_SNAKE_CASE__	):
								SqlDatasetWriter(SCREAMING_SNAKE_CASE__				, """dataset"""				, """sqlite:///""" + output_sqlite_path				, num_proc=0	).write()








'''simple docstring'''


def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				if b == 0:
								return 1
				if (b % 2) == 0:
								return actual_power(SCREAMING_SNAKE_CASE__				, int(b / 2	)	) * actual_power(SCREAMING_SNAKE_CASE__				, int(b / 2	)	)
				else:
								return a * actual_power(SCREAMING_SNAKE_CASE__				, int(b / 2	)	) * actual_power(SCREAMING_SNAKE_CASE__				, int(b / 2	)	)







def      snake_case_  (    SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	):







				"""simple docstring"""





				if b < 0:
								return 1 / actual_power(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	)
				return actual_power(SCREAMING_SNAKE_CASE__				, SCREAMING_SNAKE_CASE__	)


if __name__ == "__main__":
				print(power(-2, -3))




